Proper operation of small crane

After the small crane is installed, one person can carry out lifting operation. Special attention should be paid to the following points:

1. After the first hoisting, tighten the jack nut again. In the future hoisting operation, also should often check whether the jack nut tightening.

2. The combination and shedding of the clutch must be carried out in the state of empty load, and the travel must be in place.

3. It is not allowed to slip off the clutch with load.

4. The limit device is used as a safety limit and cannot replace the work switch.

5. When carrying out lifting operations, the staff upstairs and downstairs should cooperate closely, and it is strictly forbidden for heavy objects to descend during lifting operations.